CVE-2026-35603
- Source
- https://cve.org/CVERecord?id=CVE-2026-35603
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-35603.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-35603
- Aliases
- Downstream
- Published
- 2026-04-17T20:38:49.901Z
- Modified
- 2026-07-08T08:12:39.986879241Z
- Severity
-
- 5.4 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Claude Code: Insecure System-Wide Configuration Loading Enables Local Privilege Escalation on Windows
- Details
-
Claude Code is an agentic coding tool. In versions prior to 2.1.75 on Windows, Claude Code loaded the system-wide default configuration from C:\ProgramData\ClaudeCode\managed-settings.json without validating directory ownership or access permissions. Because the ProgramData directory is writable by non-administrative users by default and the ClaudeCode subdirectory was not pre-created or access-restricted, a low-privileged local user could create this directory and place a malicious configuration file that would be automatically loaded for any user launching Claude Code on the same machine. Exploiting this would have required a shared multi-user Windows system and a victim user to launch Claude Code after the malicious configuration was placed. This issue has been fixed on version 2.1.75.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-426" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35603.json" }- References
Affected packages
Git / github.com/anthropics/claude-code
Affected ranges
- Type
- GIT
- Repo
- https://github.com/anthropics/claude-code
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
{ "extracted_events": [ { "introduced": "0" }, { "fixed": "2.1.75" } ], "cpe": "cpe:2.3:a:anthropic:claude_code:*:*:*:*:*:node.js:*:*", "source": [ "AFFECTED_FIELD", "CPE_RANGE" ] }